Yb4 Hf4 O12 — Properties & Data | MatWorld

Yb4 Hf4 O12

ceramic

· Yb4 Hf4 O12

Yb₄Hf₄O₁₂ is a rare-earth hafnium oxide ceramic compound combining ytterbium and hafnium oxides in a pyrochlore or defect-fluorite crystal structure. This material is primarily of research interest for high-temperature thermal and environmental barrier coating applications, where its refractory properties and chemical stability are being evaluated as a candidate for next-generation aerospace thermal management systems that exceed the performance envelope of conventional yttria-stabilized zirconia coatings.

thermal barrier coatingsaerospace engine componentshigh-temperature ceramics researchenvironmental barrier coatingsrefractory materials developmentadvanced propulsion systems

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	4.631	eV	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.838	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Yb4 Hf4 O12

Electrical Properties

Other Properties

Regulatory Screening

Environmental